Daniel, has this been fixed with 331.20? I'm seeing the entry "Added a new NV-CONTROL attribute, NV_CTRL_BACKLIGHT_BRIGHTNESS, for controlling backlight brightness." in the changelog.
Source: http://ubuntuhandbook.org/index.php/2013/11/nvidia-331-20-install-ubuntu-linux-mint/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1241745 Title: [regression] Changing the screen brightness does not work anymore in 319.xx Status in “linux” package in Ubuntu: Confirmed Status in “nvidia-graphics-drivers-319” package in Ubuntu: Triaged Bug description: Changing the screen brightness always used to work on my HP Elitebook 8560w -- both with the function keys and in the dialog "Brightness & Lock" in the system settings. The environment light sensor also used to work IIRC. Since the update to 13.10, this stopped working. Methods I have tried that didn't work for adapting the brightness are: * Adding GRUB_CMDLINE_LINUX="acpi_backlight=vendor" to /etc/default/grub * Adding GRUB_CMDLINE_LINUX=”acpi_osi="!Windows 2012" to /etc/default/grub Currently I am changing the brightness manually using xrandr --output LVDS-0 --brightness 0.9. However, AFAIK this does not really change the brightness, but only changes the contrast. WORKAROUND: Use nvidia-graphics-drivers-304. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: xorg 1:7.7+1ubuntu6 ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3 Uname: Linux 3.11.0-12-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 319.60 Wed Sep 25 14:28:26 PDT 2013 GCC version: gcc version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu8) .tmp.unity.support.test.0: ApportVersion: 2.12.5-0ubuntu2 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true Date: Fri Oct 18 19:50:36 2013 DistUpgraded: 2013-10-17 17:20:47,580 DEBUG enabling apt cron job DistroCodename: saucy DistroVariant: ubuntu DkmsStatus: nvidia-319-updates, 319.60, 3.11.0-12-generic, x86_64: installed nvidia-319-updates, 319.60, 3.8.0-31-generic, x86_64: installed ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: NVIDIA Corporation GF108GLM [Quadro 1000M] [10de:0dfa] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device [103c:1631] InstallationDate: Installed on 2013-01-06 (285 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) JockeyStatus: kmod:nvidia_319_updates - nvidia_319_updates (Proprietary, Enabled, Not in use) kmod:nvidia_304 - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use) kmod:nvidia_304_updates - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use) kmod:nvidia_319 - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use) MachineType: Hewlett-Packard HP EliteBook 8560w MarkForUpload: True ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=53f83a14-cacc-48fd-bb4b-354d69eb7f0e ro quiet splash "acpi_osi=!Windows 2012" SourcePackage: xorg UpgradeStatus: Upgraded to saucy on 2013-10-17 (1 days ago) dmi.bios.date: 06/11/2012 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68SVD Ver. F.27 dmi.board.name: 1631 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 01.3B dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68SVDVer.F.27:bd06/11/2012:svnHewlett-Packard:pnHPEliteBook8560w:pvrA0001D02:rvnHewlett-Packard:rn1631:rvrKBCVersion01.3B:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP EliteBook 8560w dmi.product.version: A0001D02 dmi.sys.vendor: Hewlett-Packard version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.46-1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.2.1-1ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.2.1-1ubuntu3 version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A version.xserver-xorg-core: xserver-xorg-core 2:1.14.3-3ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.904-0ubuntu2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1 xserver.bootTime: Fri Oct 18 19:39:07 2013 xserver.configfile: default xserver.errors: Failed to load /usr/lib/xorg/modules/libglamoregl.so: /usr/lib/xorg/modules/libglamoregl.so: undefined symbol: _glapi_tls_Context Failed to load module "glamoregl" (loader failed, 7) open /dev/fb0: No such file or directory xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.14.3-3ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1241745/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
